Class: CleverSequence::LowerBoundFinder

Inherits:
Struct
  • Object
show all
Defined in:
lib/demo_mode/clever_sequence.rb

Instance Method Summary collapse

Instance Method Details

#lower_bound(current = 1, lower = 0, upper = Float::INFINITY) ⇒ Object 



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# File 'lib/demo_mode/clever_sequence.rb', line 76

def lower_bound(current = 1, lower = 0, upper = Float::INFINITY)
  if exists?(current)
    lower_bound(next_between(current, upper), [current, lower].max, upper)
  elsif current - lower > 1
    lower_bound(next_between(lower, current), lower, [current, upper].min)
  else # current should == lower + 1
    lower
  end
end